Take the different approach.

I smirked. "Well...I DID promise you were going to get it, didn't I?" Terra smiled, nodding eagerly. "You sure did," she replied. I pointed to the kitchen table. "Bend over that," I ordered. Terra bent over the table with her arms, letting her tits dangle. Turning her head, Terra grinned at me.

"So, am I getting a spanking or..." I responded by yanking her shorts off and making her panties follow suit. Gasping in surprise, she had little preparation for when I slammed my hard cock into her pussy from behind. "Oh GOD!" She cried out as I began pounding her hard. As predicted by her, Terra's tits began to jiggle and bounce with each thrust. I grabbed her waist, giving her all I had. Because her shorts were still on, she couldn't spread her legs very far, making it super tight.

"Nnngh! Oh, John! Fuck, yeah! Shake my milky tits up!" moaned Terra. I decided to try something. "You're a bad girl, aren't you Terra? Getting me all worked up on the bus...teasing me on the way back..." Groaning, she nodded her head. "I'm a bad, bad girl, Johnny! I'm so bad!" Terra answered. I smirked. "Then you deserve THIS, don't you?" I slapped her ass. Squealing, Terra nodded her head again, barely able to talk.

"Oh GOD! Yes, I deserve it! Slap my ass, John! Oh shit, I'm going to cum any second now...oh Johnny, you're the fucking greatest!" she wailed as I slapped her ass again. Not much to slap, being as skinny as she was, but it was still fun. She tensed.

"H...here I...here...here I CUM! Oh Johnny!" cried Terra as her body shook. "Nngh...shit, Terra...I can't..." "Oh yeah, John...cum in my pussy! Yeah, don't worry, you know I can't get knocked up, fill me with that seed!" I shot my load into her as she cried out, shaking. Panting, I slipped out of her, letting her rest against the table. She giggled between pants.

"Hey...if I eat some ice cream, do you think we'll get shakes?" I had to laugh. ...and I wondered...